I have absolutely no idea how to attempt this. You work for a power station design...

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Mechanical Engineering

I have absolutely no idea how to attempt this.
You work for a power station design company and have a clientwho has a fairly loose specification for a steam powered plant. Youare required to design a steam power plant cycle that can achieve acycle thermal efficiency of at least 20%. Assume that any usedturbines have isentropic efficiencies of 80% and any pumps haveisentropic efficiencies of 65%. The maximum pressure allowed forthe cycle is 50 bar and minimum pressure allowed is 1 bar. You havetotal discretion to assume the temperatures, pressures and anyother variable you deem necessary unless stated above, thoughassumptions need to be of sensible values that are justified givencurrent engineering technology. Your brief summary report shouldinclude as a minimum the following;
1- Discuss the advantages and disadvantages of your chosen cycleand compare it to alternative cycles using bullet points.
2- System diagram (Block diagram) and T-s diagrams with labeledstates and temperature, pressure, enthalpy, and entropy informationfor your design. This should also include explanation of yourdesign.
3- Sample calculations for enthalpy difference of turbine stageof your selected cycle.

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3.6 Ratings (339 Votes)

Design criteria for our cycleThermal efficiency 20Turbine isentropic efficiency 80 080Pump isentropic efficiency 65 065Boiler pressure 50 BarCondenser pressure 1 BarWe shall make use of RANKINE CYCLE for thepower productionAssumptionsIn ideal case the steam exiting the turbine is saturated vaporconditionWater enters the pump in a saturated liquid stateNet work done Turbine work Pump workSaturated properties of steam at boiler and condenserpressureNow from the above TS chart s2 s1 sg at See Answer

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